80420089616 has 10 divisors (see below), whose sum is σ = 155813923662. Its totient is φ = 40210044800.

The previous prime is 80420089577. The next prime is 80420089621. The reversal of 80420089616 is 61698002408.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 77818681600 + 2601408016 = 278960^2 + 51004^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2513127785 + ... + 2513127816.

Almost surely, 2^80420089616 is an apocalyptic number.

It is an amenable number.

80420089616 is a deficient number, since it is larger than the sum of its proper divisors (75393834046).

80420089616 is a wasteful number, since it uses less digits than its factorization.

80420089616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5026255609 (or 5026255603 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The spelling of 80420089616 in words is "eighty billion, four hundred twenty million, eighty-nine thousand, six hundred sixteen".